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Esa Helttula
بیشتر از Esa Helttula
Column Subtraction
Column Subtraction5.0
This math app can be used to teach and study the column subtraction method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The user can solve random or custom subtraction problems with small and large numbers. The number of digits in
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Partial Quotients Division
Partial Quotients Division5.0
This math app can be used to teach and study the partial quotients division method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The user can solve random and custom division problems. Endorsed by teachers Rita Zeni, Ecole Sandy
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Decimal Rounding
Decimal Rounding5.0
This math app can be used to teach and study the rounding of decimals. You can set your own problems or solve random problems. The decimal numbers can be rounded to nearest whole number, tenth, hundredth or thousandth. They can also be rounded to 0, 1, 2 or 3 decimal places. The app guides you step
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Long Multiplication
Long Multiplication5.0
This universal app is part of a set of idevbooks math apps. Reviewed by Wired.com: "A Set of Excellent iPhone Math Apps for the Older Child”. The Long Multiplication math app can be used to teach and study the long multiplication method. Endorsed by teachers Rita Zeni, Ecole Sandy Hill Element
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Lattice Multiplication
Lattice Multiplication5.0
This app can be used to teach and study the ancient lattice multiplication method. Solving lattice multiplication problems is also excellent times tables practice. The app is very easy to use and it has an intuitive interface with customizable colors and other settings. The user can solve custom and
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Trade-First Subtraction
Trade-First Subtraction5.0
This app can be used to teach and study the trade-first subtraction method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The user can solve random subtraction problems with small and large numbers. The number of digits in the numbe
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Partial Sums Addition
Partial Sums Addition5.0
This app can be used to teach and study the partial sums addition method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The user can solve random addition problems with small and large numbers. The number of digits in the numbers ca
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Fractions Decimals Percentages
Fractions Decimals Percentages4.4
This math app is about visually exploring how percentages and decimals are just special kinds of fractions with their own notation. There are no tasks to complete or problems to solve. The purpose is to build conceptual understanding. By painting different grids and circles with one or more colors
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Fraction Math
Fraction Math3.7
The Fraction Math app can be used to teach and study fractions by solving addition, subtraction, division and multiplication problems with fractions step by step. Wired.com: "Quite a useful app for learning many fraction computations." The Fraction Math app can handle positive and negative fraction
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Long Division
Long Division3.3
The Long Division app has been featured by Apple in "New & Noteworthy", "Math - Numbers & Operations", and in "Math Apps for Middle School". Educational App Review (iear.org): "This app is fantastic!!" The Long Division app can be used to teach and study the long division method. Solving long divi
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Grid Multiplication
Grid Multiplication3.0
This math app can be used to teach and study the grid multiplication method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The grid multiplication app is the latest app in the set of 17 math apps that was reviewed by Wired.com: “A
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Column Addition
Column Addition3.0
This math app can be used to teach and study the column addition method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The user can solve random or custom addition problems with small and large numbers. The number of digits in the n
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Whole Number Rounding
Whole Number Rounding3.0
This math app can be used to teach and study the rounding of whole numbers. You can set your own problems or solve random problems. The numbers to be rounded can have up to 8 digits. The Whole Number Rounding app guides you step by step when you solve each problem and there are no penalties for wro
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Partial Product Multiplication
Partial Product Multiplication2.5
This math app can be used to teach and study the partial products multiplication method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. Endorsed by teachers R. Zeni, Ecole Sandy Hill Elementary, Abbotsford, BC, Canada: "The mat
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European Long Division
European Long Division-
The European Long Division app can be used to teach and study the long division method that is used in several European countries. The user can solve custom and random division problems with small and large numbers. Endorsed by Teachers R. Zeni, Ecole Sandy Hill Elementary, Abbotsford, BC, Canada:
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German Long Division
German Long Division-
The German Long Division app can be used to teach and study the German long division method. The user can solve custom and random division problems with small and large numbers. Endorsed by Teachers R. Zeni, Ecole Sandy Hill Elementary, Abbotsford, BC, Canada: "The Math apps by Esa Helttula allow
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World Factbook Visual Edition
World Factbook Visual Edition-
The World Factbook Visual Edition has information on the people, society, government, economy, geography, communications, transportation, military, and transnational issues for 267 world entities. Information in this version of the app is up-to-date as of December 2018.<br><br>GeekDad.com: "It’s dif
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Column Division
Column Division-
This math app can be used to teach and study the column division method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The user can solve random division problems.<br><br>The Column Division Method<br><br>The column division method
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Vedic Multiplication
Vedic Multiplication-
This math app is about a multiplication technique introduced by Shri Bharti Krishna Tirthaji in his book “Vedic Mathematics”, published in 1965. Tirthaji claimed to have found the mathematical content for his book in ancient sacred Hindu texts. In the vertically and crosswise multiplication method
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Same-Change Subtraction
Same-Change Subtraction-
In the Same-Change Subtraction app the user can keep adding or subtracting the same amount from both numbers until the subtraction problem can be solved easily.<br><br>The same-change rules states that If you subtract or add the same number from both parts of a subtraction problem, the difference re
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Everyday Column-Addition
Everyday Column-Addition-
This app can be used to teach and study the alternative column-addition method used in the Everyday Mathematics curriculum developed by the University of Chicago School Mathematics Project. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settin
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Left-to-Right Subtraction
Left-to-Right Subtraction-
This math app can be used to teach and study the left-to-right subtraction method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The user can solve random subtraction problems and each step is made clearer with an animation.<br><br>
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Opposite-Change Addition
Opposite-Change Addition-
In the Opposite-Change Addition app the user can keep adding a number to one addend and subtract the same number from the other addend until the addition problem can be solved easily.<br><br>The opposite-change rules states that if you subtract a number from one addend and add the same number to the
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Partial Difference Subtraction
Partial Difference Subtraction-
This math app can be used to teach and study the partial differences subtraction method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The user can solve random subtraction problems. The number of digits in the numbers can be set.
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